A control chart, also known as a Shewhart or Process Behavior chart, is a time series graph of data collected over time. It is composed of a center line representing the average of the data being ...

Below is the control chart and the BB’s interpretation. The BB agreed there was a run of 11 points in a row above the center line. Since that is a signal of special cause variation he suggested ...

We also cover the equations and constants for the X-bar and R (Range) chart, and work an example of this important control chart ... Neither RIT or the Center of Excellence in Advanced and Sustainable ...